Mahabharata 13.10.26

अथ दर्भांश्च वन्याश्च ओषधीर्भरतर्षभपवित्रमासनं चैव बृसीं च समुपानयत्

atha darbhāṃśca vanyāśca oṣadhīrbharatarṣabhapavitramāsanaṃ caiva bṛsīṃ ca samupānayat

Our plain-language meaning of this verse is waiting for scholar review.